CN201909691U

CN201909691U - Torque detecting device for continuous rotating shafts

Info

Publication number: CN201909691U
Application number: CN201020672174XU
Authority: CN
Inventors: 李泽宇; 迟成芳
Original assignee: CHANGCHUN RESEARCH INSTITUTE FOR MECHANICAL SCIENCE Co Ltd
Current assignee: CHANGCHUN RESEARCH INSTITUTE FOR MECHANICAL SCIENCE Co Ltd
Priority date: 2010-12-21
Filing date: 2010-12-21
Publication date: 2011-07-27
Anticipated expiration: 2020-12-21

Abstract

The utility model relates to a torque detecting device for continuous rotating shafts and belongs to the field of detecting instruments. The technical scheme adopted by the utility model is that a motor rotor is fixedly connected with a test auxiliary appliance shaft; a motor stator is in screwed connection with a shift fork through a spigot; a disc outer ring of the shift fork is in interference fit with a bearing inner ring; an inner bearing end cap and the shift fork are fixedly connected through a bolt; a bearing outer ring are in interference fit with a bearing support; an outer bearing end cap is fixed with a bearing through a bolt; a force transducer and the bearing support are fixedly connected through a bolt; and a shaft pin on the force transducer is connected and contacted with the shift fork. The torque detecting device has the advantages that a novel thought or method is provided, the accuracy of measurement result is improved, the structure is compact and intermediate links such as the support seat or a coupler is saved, and the manufacturing cost is saved.

Description

A kind of continuous turning axle torque detecting apparatus

Technical field

The utility model belongs to detecting instrument instrument field, measures the moment of torsion of continuous turning axle type component or a kind of novel detection device of spin friction power so refer in particular to a kind of usefulness.

Background technology

In the testing machine industry, measuring the suffered torque value of continuous turning axle is common test format, the now normal structure that adopts is by a cover auxiliary body and measured piece is direct-connected detects with torque sensor, because torque sensor is a kind of comparatively responsive part, especially two ends output shaft, can not be subjected to moment of flexure disturbs, mounting position degree requires high, need auxiliary members such as a supporting base, both-end shaft coupling, cause one-piece construction long and narrow, institute takes up space bigger, and torque sensor and measured piece and motor connecting link are more, influence measuring accuracy.

Summary of the invention

The utility model provides a kind of continuous turning axle torque detecting apparatus, and is more to solve torque sensor and measured piece and motor connecting link, influences the problem of measuring accuracy.

The technical scheme that the utility model is taked is: rotor attaches axle with test and fixedlys connected, motor stator is connected with screw with shift fork by seam, the disk outer ring of shift fork and bearing inner race interference fit, with screw the inner bearing end cap is fixedlyed connected with shift fork, bearing outer ring and bearing seat interference fit, with outer bearing end cap and bearing fixing, force cell is fixedlyed connected with bearing seat with screw with screw, and the pivot pin on the force cell is connected with the shift fork contact simultaneously.

Advantage of the present utility model is novel structure, and intermediate links such as supporting base or shaft coupling have been saved in compact conformation, saving space, have reduced driving error, have improved the accuracy of measurement result; This detection mode is the measurement of shaft element friction force or moment of torsion, and new thinking or method is provided, and has saved manufacturing cost simultaneously.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the left view of Fig. 1.

Embodiment:

Motor 7 rotors attach axle 1 with test and fixedly connected, motor 7 stators are connected with shift fork 2 usefulness screws by seam, the disk outer ring of shift fork 2 and bearing 4 inner ring interference fit, with screw inner bearing end cap 6 is fixedlyed connected with shift fork 2, bearing 4 outer rings and bearing seat 3 interference fit, with screw that outer bearing end cap 5 is fixing with bearing 4, force cell 8 usefulness screws are fixedlyed connected with bearing seat 3, and the pivot pin on the force cell 8 is connected with shift fork 2 contacts simultaneously.

Principle of work: during electrical power work, rotor and stator produce acting force and reacting force, the two equal and opposite in direction, and direction is opposite; If motor suspends and is not subjected to external force, stator is connected with force cell, the acting force that rotor produced will be measured to throw-over gear and by force cell by the stator retroaction so; The moment of torsion that same rotor produces, the power that will record by force cell, the product of the arm of force that is connected with force cell with stator reflects.

Claims

1. continuous turning axle torque detecting apparatus, it is characterized in that: rotor attaches axle with test and fixedlys connected, motor stator is connected with screw with shift fork by seam, the disk outer ring of shift fork and bearing inner race interference fit, with screw the inner bearing end cap is fixedlyed connected with shift fork, bearing outer ring and bearing seat interference fit, with screw with outer bearing end cap and bearing fixing, force cell is fixedlyed connected with bearing seat with screw, and the pivot pin on the force cell is connected with the shift fork contact simultaneously.